Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:14:25 2012

Optimize a model with 278 rows, 789 columns and 789 nonzeros
Model has 554 quadratic constraints
Presolve removed 0 rows and 17 columns
Presolve time: 3.23s
Presolved: 278 rows, 772 columns, 772 nonzeros
Variable types: 554 continuous, 218 integer (217 binary)

Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

H    0     0                     135.0000000          -     -      -    3s
     0     0    0.00000    0    2  135.00000    0.00000   100%     -    3s
     0     0    0.00000    0    3  135.00000    0.00000   100%     -    3s
     0     0    0.00000    0    3  135.00000    0.00000   100%     -    3s
     0     2    0.00000    0   93  135.00000    0.00000   100%     -    3s
H   43    43                      33.0000000    1.92632  94.2%  36.3    3s
H   99    85                      27.0000000    2.11429  92.2%  24.5    3s
H  162   118                      26.0000000    2.82812  89.1%  20.5    3s
*  176   128              50      25.0000000    2.82812  88.7%  21.2    3s
*  179   110              53      24.0000000    2.82812  88.2%  21.2    3s
H  231   116                      21.0000000    3.22727  84.6%  21.8    3s
*  231   106              18      20.0000000    3.22727  83.9%  22.3    3s
   606   220    7.71186   15  463   20.00000    7.71186  61.4%  28.5    5s
*  861   285              49      19.0000000    7.71186  59.4%  36.7    6s
*  863   253              49      18.0000000    7.71186  57.2%  36.7    6s
  2089   223   15.65089   36  415   18.00000   12.65455  29.7%  34.9   10s

Explored 3036 nodes (102534 simplex iterations) in 14.46 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.800000000000e+01, best bound 1.800000000000e+01, gap 0.0%